There is a widespread concern that imbalances in voter turnout across race and class have led to biased outcomes in American democracy. Yet empirical tests have generally found that the unrepresentative nature of the electorate has little effect on who wins and loses elections. We challenge this finding by arguing that existing research minimizes the chances of finding bias because it focuses largely on national elections where turnout is relatively high and where minority groups are generally too small a percentage of the population to sway elections. By focusing on city elections we find that lower turnout leads to substantial reductions in the representation of Latinos and Asian Americans on city councils and in the mayor's office. For African Americans district elections and off-cycle local elections are more important barriers to representation.